Bobcat Bucket Teeth Replacement H401561HRC Aftermarket Parts

The definition and function of the bucket shaft and bushing of an excavator

Define ‌

The bucket shaft is the core transmission component between the bucket arm and the bucket of an excavator. It is usually a high-strength metal shaft body (such as alloy steel or ductile iron), which is connected to the bucket ears through bolts or pins and bears the impact load and torsional force ‌ during excavation.

Function ‌

Power transmission ‌ : Convert the thrust of the hydraulic cylinder into the digging action of the bucket ‌.

Impact resistance ‌ : Buffers excavation resistance under heavy load conditions to prevent structural deformation ‌.

Positioning and guidance ‌ : Ensure the stability of the bucket movement trajectory and improve the operation accuracy ‌.

The definition and function of bushings

Define ‌

The bushing is a ring-shaped wear-resistant component installed between the bucket shaft and the bucket ear. The materials include metal (such as bronze), non-metal (such as PTFE), or composite materials, and it is fixed by an interference fit ‌.

Function ‌

Anti-friction protection ‌ : Reduce the direct friction between the bucket shaft and the bucket ears, and extend the service life ‌.

Buffering and shock absorption ‌ : Absorb the vibration and shock during excavation operations and reduce noise ‌.

Sealing and dust-proof ‌ : prevent mud and sand from entering the shaft hole and reduce wear ‌.

Convenient maintenance ‌ : As a vulnerable part, it wears out first, and the replacement cost is lower than that of the overall component ‌.

Component matching relationship

The bucket shaft and the bushing need to work in coordination: the bushing protects the bucket shaft through its low-friction characteristics, while the high-strength support of the bucket shaft ensures uniform force distribution on the bushing ‌.